# java -Djarmode=tools -jar app.jar extract --layers   (the layer order Spring Boot's Dockerfile support uses)
layer                          KB    gzip KB files
dependencies                22878      20490 47
spring-boot-loader              0          0 0
snapshot-dependencies           0          0 0
application                     8          7 1

# the AOT cache from the training run (context-only), for scale
refresh.aot                 61016      15362

# change one line of application code (the unit price in OrderService, built by prepare.sh), extract again
layer                  before         after          verdict
dependencies           81a2cb4f9f5c   81a2cb4f9f5c   identical: reused from cache/registry
spring-boot-loader     abcfa6a9d4df   abcfa6a9d4df   identical: reused from cache/registry
snapshot-dependencies  abcfa6a9d4df   abcfa6a9d4df   identical: reused from cache/registry
application            4ecdea8230c6   19563974ba7b   CHANGED: rebuilt and pushed
AOT cache: trained against the previous jar, so it is stale for the new one (see output/04-mismatch.txt); it must be regenerated after the application layer